72074805 has 32 divisors (see below), whose sum is σ = 126517248. Its totient is φ = 34747200.

The previous prime is 72074789. The next prime is 72074881. The reversal of 72074805 is 50847027.

It is not a de Polignac number, because 72074805 - 2⁴ = 72074789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30372 + ... + 32658.

It is an arithmetic number, because the mean of its divisors is an integer number (3953664).

Almost surely, 2^72074805 is an apocalyptic number.

It is an amenable number.

72074805 is a deficient number, since it is larger than the sum of its proper divisors (54442443).

72074805 is a wasteful number, since it uses less digits than its factorization.

72074805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 72074805 is about 8489.6881568171. The cubic root of 72074805 is about 416.1607894381.

The spelling of 72074805 in words is "seventy-two million, seventy-four thousand, eight hundred five".